Cylinder head for all types of water-cooled internal-combustion engines



Nov. 15, 1927.

- J. T. BOOTES CYLINDER HEAD FOR ALL TYPES OF WATER CCOLED INTERNALCOMBUSTION ENGINES Filed June 24, 1926 INVENTOR. (lb/Lil Q .Booies,

ATTORNEY.

Patented Nov. 15, 1927.

V JOHN T. BOOTES, OF CEBU, PHILIPPINE ISLANDS.

CYLINDER HEAD FOR ALL TYPES OF WATEEi-COOLED TNTERNAL-GOMBUSTIONENGINES.

Application iiledlune 24, 1926. Serial No. 118,231.

7 My invention relates to improvement in water cooled cylinder heads forinternal combustion engines in which the head is fabricated in two ormore sections in such a manner that the lower section is held inposition by the upper, no bolts passing through the lower section, dueallowance being made for expansion.

The object of my improvement is to provide for readily removing thedeposits which collect in the head, thereby preventing overheating andcracking of the cylinder head. This is done by removing theupper-section, the lowersection then being accessible for removing such,deposits as may have collected.

The advantages of the improvedhead are readily seen. The deposits fromminerals in water form an insulation thus preventing the water fromcoming in contact with the surface of the metal, resulting inoverheating and cracking of the cylinder head. The life of this improvedhead, regularly cleaned, indefinite, while the life of the head ord1-narily used is only about six months; this particularly true of themarine type of engine where sea water is used for cooling.

In the drawings wherein like reference characters denote correspondingparts throughout the several viewsz i Fig. 1 is a cross section of anseembled head; Fig. 2 is a bottom view of upper section of head showingcylinder head bolt openings and circulating water spaces; Fig. 3 is across section of Fig. 2; Fig. 4 is a bottom view of lower section of theimproved partof cylinder head and Fig. 5 is across section of Fig. 4.

A cylinder head, in accordance with this invention, comprises an outerand an inner section referred-to generally by the reference characters1, 2 respectively.

The section 1 includes a body portion 10, in the form of an annulus,having flush with its rear face an outwardly directed annular flange 11.The inner face of the body portion 10 is formed with an annular flange12, and also with spaced bosses whichentend from the flange 12 to aninwardly extending The bosses are indicated annular flange 14. at 15. IThe flange 12 is of greater thickness than the flange 14. The flange 12has its outer face flush with the rear face of the body portion 10, andthe flange 14 has its outer face flush with the forward face of the bodyportion 10. Extending through the flanges 12, 14 and bosses 15 are boltopenings,

5, through which are adapted to extend bolts, not shown, for fixedlysecuring the section 1 to the body of the cylinder.

The section 1 further includes a collar 16, which is'suspended withinthe body portion 10 at the rear thereof, as well as being eccentricallydisposed with respect to the inner face of said body portion. The collar16, at that end thereof, adjacent the rear face of the body portion 10,is formed with an outwardly extending annular flange 17 Formed integralwith the flanges 14 and 17 is a wall-forming member 18 which is ofcircular cross section. The member 18 extends rearwardly from the flange14, and is of flaring contour and with the flare gradually increasingfrom one side towards'the other side thereof. The rear face of theflange 12 is rabbeted as at 19. The forward end of the collar 16 isprovided with sockets 20 having threaded walls.

The body portion 10, in connection with the flanges 14 and 17. collar 16and member 18 provides a water space 21 which is open at its rear. Therear end of the water space 21 is adapted to be closed by the section 2and which will be hereinafter referred to.

The flange 12, between the bosses 15, is provided with openings 22 forcirculating-watch through the water space 21, and said openings 22 areadapted to communicate with the water jacket of the cylinder, not shown.

The section 2 consists of a. disk 23, formed eccentrically thereof. withan opening 24 having a tapered all, which is rounded, and formedintegral with the forward face of the disk 23, is a collar 25 having thewall thereof forming a continuation of the wall. of the opening 24.Formed integral with the marginal portion of the disk 23, as well asprojeeting laterally from the outer edge of the disk 25, is an annularrib 26, having a roundedinner edge 27 and a squared outer edge 28. Therib 26 projects an appropriate distance from the outer edge of the disk23. The outer edge of the disk 23 is rabbeted as at 29, which provides aperipheral shoulder 30, positioned in proximity to the lower face of therib 26. The shoulder 30, in cross section, extends in a'plane parallelto the plane of the rear face of the rib 26.

The rib 26 is adapted to seat in the rabbet 19 formed in the rear faceof the section 1,

Whern thernih-fQSfi is eeateld the rirbbetiJiS), extends into the collar16 and" the forward edge of the collar 25 is flush with"the*for- Wardedge of the-. collartiid mfihenithe collar 25 is ositioned in the collar16, the rear edge" er 1: 1ecollar l 16 abnts against hhe "for- Ward faceof the disk 23. VVhen the collar 25 is positioned in the collar-I6andthe rib "26:.seated3in themahbet .19, then-ear end of 10' theWatcrspace121. is closedihy the sectionl2. .lThe idiskl23, Whenthesectionfiis mounted in position relative to the sectioni l exten'ds intothe engine cylinder not shown. The shoi'ilder 30 ismsidapted -tothatagainst the anmilarshoulder' formed onithe wfll oftheBDg-lllBxOYliIidBI' not shown.

Forming apart of thecfidinder head, in accordance with thisrinventionisn hot hall "formed of a11-0uter:;section"3 andlaninner section 4:.*The inner section 4 is of tubular L contour, extends "through" the"collar li and .dihk' '23,n1id-;is proizided near itsfforwztrd end withan outwardly: extendingannula-r. flange Blywhihh seats on the rforwer'dedgen'f'the collar- 25. TheseetionEv at'its'inner end, is

formed with a I laterally zexten'ding' .zmnular "flange 32; which"seets" on the ifonwarchedge of the. collar 161arid'also'npolrthefliange' 17. Theinner'end. of the section3 is steppddor"rahbete'd,aas" at 33,"ifor the purposeof over- ..lapping the flange 31and the forum d" :e'dge of the section 1, and" forrhirfding the sectionl againsti the forward ed eof'thecollar 525, "when" the section 3 isfixddlyrsecnred to the 35 "collarit6. "The section"3' the'hot wall isdetabhhbly 'secnre'chtoithe cbl1arI6-hfhold '"fast Jdevices "9"1'vhiehextend through {the flange: 32 andtengage" the threadedwalls 1 of*thesocketlQO.

40 pahhi-ng? is intenposechbetween the sections 1 a1id 2, anda peeking 8is interposed between "theieections' of the -hot=bl]= and ='the "collars16 and 25.

Whenfthe cylinder 'head is mounted in po- 'sitionwith respecti'to thecylinder-flood the section 1 is 'positioned' -against the tcr-vwarcl"-end ersaid body 'and-"the fiorwar'd 'i'aee of the rib 26. The* holcswhiclweztend through the openings kr secnres the section'll i to" the"cjdiridei" and Whih in" t'urn clamps ithe sec- "tion W ther-eagainst.*Byremoving thebolte, whihl'l secures'the section l te the: cylinder,the section l can he removed fr01n"the-sectionfl 2 and the-\vails-.;of=the water -sepace 21. [The hot hall can be disconnected from thecylinder head without disconnecting the sections thereof.

vvhat lelaim is z n a 1. 'A cylinder head oompi'ising anuolilter "and"an inner section, theiintteiw'seabingmin and. extending"rearwardly from:the former atthe rear thereof, :said outer sectionzconsist- 'Qing ofefbddy-"portion in the iormeofzamantending into the collar dfthe outersection,

-said outer section;providedm'ith meansWor 'the passage ofsecuringboltsftherefor for clamping .the inner sectionl inpositionczafld a hot' ball detachizh ly connectechto thGLTCOllar of .theouter section arfdmxteriding r thIOQ'gh "the chillarvdfthef inner 'section," and said rear "flange profi ided with openings communicating-Withsaid Water space.

A zcylinder 'hezfd formed of-an otter and aninner section the lattereeatingdn and extending rearwardly from the dormer Rat therear"thereofand "freezer direct connectionwith-salid outer: section, chi douter-sec- "-tionf'formed "Withfimeans to proi ide 'a water"spacefclosed by :said "inner "sections, caid "JIIGiL-IIS' "including an*eccentiieaily disposed collar,- saidEi-nner section formdd n'ith mweoicentrical'ly disposed :opening :fllid an eccen- *iti'ically disposedcollar extending into the "collaroftheoutereecti.on;-arid :ihot heetachhhlysecm'd-againet the *forwmd s of said "collzzrs -andmidieridingthrongh the "C61IIII'"Of:SEtid i inner *section, simi d miter-sew tionhaving its'rearprovide'd with openings communicetihgwithSEtiCl""Wfit61SPRCE. 1 cylinder hea d formed an outersectiomprorided'withaneans to form awater Space open at' item-earand'nvith the" rear pcr :Etion ofthe inner We ll ofseichepace' fonmed(if an eccenthicimlly disposdd collaly an inner section extendedrearwandiyfvern the: miter *section -nndLinhln'ding an extendedriljr'eenting' in the rear of said outewecc'tiongsaidinnew-sectionproviding means towelosing the rear of said weter spacelandincludtngaan eccentrieally disposed opening: :zmd 1a collar registeringWith'fithw opening: and extending i-nto the collar tormednon therrilnnerwill] of =-said waterspace, land s a .whot rtball seating mgainstithevforwardweiid xofi Sfli(h011flf$,-fl6 tachebly oonnectedl tofilthecollar m1 smith" ner wall and finrther l caetendingzthrou the collar er:the inner=sectio1 n=saidoutenxeection "h aving its rear providedwithfopenin gs? com rnunieating w ithsaidlwater space. I

111 testimony whereofnlaafi'ni any signamn'e hereto.

FJOHEN T. noo'rne.

